defaultdict_fromkey

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class defaultdict_fromkey[source]

Bases: collections.defaultdict

Creates a dictionary with a default_factory function that creates new elements using key as argument. Usage : new_dict = defaultdict_fromkey(method); where method like (lambda key: return new_obj(key)) Each time that new_dict[key] is called with a key that doesn’t exist, method(key) is used to create the value Copied from PyAlarm device server